Thank you for detailing your concerns about the appearance and sensations in your right armpit post-arm lift. Based on your provided history and photos, while I do not directly observe pus, there appears to be an open wound with exposed sutures. Such sutures, if they seem non-functional, should probably be removed. It's not unusual for open wounds to cause pain, but it doesn't necessarily indicate a complication. However, if you suspect the presence of pus, it's imperative to consult with your surgeon without delay. Pus can clearly indicate an infection, necessitating antibiotics and potential surgical wound debridement. I strongly recommend a prompt follow-up with your plastic surgeon for a thorough assessment and guidance on the next steps. Sincerely, Dr. Katzen